Question about Texas Instruments TI-89 Calculator

# How to write tan square in ti 89 - Texas Instruments TI-89 Calculator

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• Texas Instru... Master

Write it as "tan(x)^2". For example, to calculate the square of the tangent of 1, press 2nd [TAN] 1 ) ^ 2 ENTER .

Posted on Nov 08, 2012

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Posted on Jan 02, 2017

SOURCE: TI-89 Problems

There isn't anything "wrong" with it.

Go to mode, and set the results of your inquiries from Exact to approx.

If you put in cos(e^2), it will print out cos(e^2) because it's the most exact it can be without going into a decimal. (cos(e^2) will be a transcendental number like Pi).

Posted on Dec 21, 2008

Well, to answer part of your question, yes... the TI-89 does factor like this. it is inputted like this:

factor(6*x^2+11*x+4,x)

Check the catalog in the TI-84 (which is 2nd-zero) and look under F for factor()

Posted on Jan 19, 2009

Press the diamond key, then press ENTER to convert a symbolic result to a decimal result. If you want them all in decimal form, press MODE then F2. Scroll down to Exact/Approx and change that setting to Approximate.

Posted on May 17, 2010

SOURCE: ti-89 titanium

Having gone over a month with no response, I assume this is no longer a problem.

Posted on Aug 01, 2010

Press diamond ENTER to convert a symbolic result to a numeric result. To have all results come out in numeric form, press MODE, F2, use the arrow keys to move to the Exact/Approx line, press right-arrow, select "APPROXIMATE", and press ENTER twice.

Posted on Feb 20, 2011

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Press the diamond key, then press ENTER to convert a symbolic result to a decimal result. If you want them all in decimal form, press MODE then F2. Scroll down to Exact/Approx and change that setting to Approximate.

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For this problem you have to type diamond key and then enter after primary input.
See captured image

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Well, to answer part of your question, yes... the TI-89 does factor like this. it is inputted like this:

factor(6*x^2+11*x+4,x)

Check the catalog in the TI-84 (which is 2nd-zero) and look under F for factor()

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### TI-89 Problems

There isn't anything "wrong" with it.

Go to mode, and set the results of your inquiries from Exact to approx.

If you put in cos(e^2), it will print out cos(e^2) because it's the most exact it can be without going into a decimal. (cos(e^2) will be a transcendental number like Pi).

Sep 09, 2007 | Texas Instruments TI-89 Calculator

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Angle mode, Degree/radian setting, Chapter 2, pg 53 (pg70 of 623) Tan instructions pg 510 (appendix A pg 527 of 623) Here's your manual, download this file: http://www.ti-89.org/uploads/ti-89-manual.pdf

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